As a result, at the end of the 1961–62 championship in a general assembly held by the members of Olympiacos Lamia (17 June 1962), they decided to propose to Palamiaki their merger and the creation of a new club and while initially the answer to the "yellow-black" was affirmative, their suggestion that the new group be called Palamiaky was not accepted and so "marriage ended in divorce".

The sinking of the negotiations with Palamiaki led to the new general assembly the members of Olympiacos (24 July 1962), where it was decided to merge the "redcurrants" with the Pamfthiotikos, named Lamiakos, who represented the prefecture in B National in the period 1963–64, but in the same year, the ticket for the category took and Palamiaiki as the champion of the National Team, with the result that Lamia was represented by two clubs in the category.

Nevertheless, their course over the years, combined with the remarkable appearances against the great forces of Greek football in the institution of the cup (2–1 and 1–0 with AEK and with Panathinaikos in the defeat of 1–5, but with the hosts leading to the 15th with Rizopoulos' head and accepting four goals after the first ten minutes of the extension), they have made PAS Lamia 1964 particularly popular in the prefecture of Fthiotida.

PAS Lamia came close to rising in the 2nd National Championship after many years in 2006–07, but eventually finished fourth.

During the 2007–08 season and while there were administrative changes, the international player of AEK and Olympiacos, Daniel Batista, was recruited as a coach, but again he did not manage to distinguish himself, winning 13th place with difficulty, ensuring the stay in category 3, bringing 40 points, just 7 over the relegation zone.

The following year (2013–14) they finished first in their group at the Gamma Ethniki, ensuring the rise for the second division (Football League) in 2014–15.

In the 2016–17 season, PAS Lamia won the promotion to the Super League (2017–18) for the first time in their history in Greek football.

[5][6][7][8] Historically the emblem of AS Lamia is the letter "L" in blue or white color as it was decided at the founding of the club on 1 June 1964.

[9] The emblem that uses the club today was presented in 2014 and depicts Athanasios Diakos, the hero of Roumeli, in his upper right hand side.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.